Regional differences

Regional differences

Regional differences Sea surface temperatures vary regionally. Temperatures have risen in many parts of the world, while some places have become cooler. The map shows the trend in sea surface temperature between 1993–2023. The fastest warming has been observed in parts of the Arctic Ocean, the Baltic Sea, the Black Sea and parts of the Pacific Ocean South of Greenland and Iceland and the tropical eastern Pacific have a cooling trend. These patterns may be linked to other climatic phenomenon – for example the cooling in the eastern tropical Pacific is related to La Niña conditions from late 2020 to early 2023  Trend in annual sea surface temperature anomalies (°C/decade) for the period 1993–2023. Data source: ESA SST CCI Analysis v3.0. Credit: ESACCI/EOCIS/UKMCAS and C3S/ECMWF.